Experimental study of double staple lines in gastric partitions.

Results of this study suggest that, when separated by 1 centimeter, the gastric wall situated between the two staple lines is relatively ischemic compared with the gastric wall outside the staple lines. The potential for perforation within this isolated segment is consequently greater. Therefore, placing two rows of staples 1 centimeter apart is dangerous and should be avoided. On the other hand, the gastric partitions can be safely reinforced by placing a double row of staples immediately adjacent to each other. Although placing two rows of staples 2 centimeters apart may be safe, there is little, if any, reinforcement of the proximal suture line, and it is not recommended.